Register-grille anchoring device



Dec, 19, 1922.

II 5: 'l' P- P CHRISTENSEN REGISTER GRILL ANCHORING DEVICE- FlLED OCT 12 192i 'mmm fizvezzior Patented Dec. la i922,

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i Application filed October 12, 1921.,"Seria1 N0.507,339.

To allwim m it may coerce m Be it known that I, PETER CHRISTENSEN, a citizen of the United States, residing at St.

Louis Parlnin the county Hennepin and parts hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, like characters indicate like parts throughout the several views. Referring to the drawings: Fig. 1 is a front elevation with some parts broken away and some parts sectioned,

showing a register grille anchored to an air conduit terminal with my improved anchoring device;

Fig. 2 is a section on the line 22 ofFig.

1, some parts being shown in full;

Fig. 3 is a horizontal section taken ap proximately on'the line 3-3 of Fig. 1;

Fig. 4 is a fragmentary view taken approximately on the same line as Fig. 3, showing less of the device than Fig. 3 but on a larger scale; and v Fig, 5 is a perspectivc view showing one of the anchoring bars. i

The wall (3 illustrated is amasonry wall but might be .of other construction. The numeral 7 indicates the air conduit terminal,

which is imbedded in or otherwise anchored in the wall 6 and, at its inner end, is formed with an inljnrncd flange 8.

The grille 9, as shown, is a cast structure that might be of any other suitable form. Near each side, the grille is formed with screw passages through which si ews 1,0 are freely passed. The thm-iaded ends of these screws ill) are engageable with internally threaded lugs '11 formed on anchoring bars 112. These anchoring bars 12, as preferably constructed, are formed with reduced edges 13 that are adapted to engage the inner faces of the flanges 8 of the conduit terminal 7. When said screws are tightened, not only will the anchoring bars be drawn tightly against the terminal flanges 8 but the progecting marginalportions of the grille will betlghtly drawn against the innerfaceof the wa'll'or against the plaster 14L whensaid mu is a plastered, wall.

Thus, the'grillemay be veryquicklyand' 4 securely clamped in position and, moreover, it is' capable of considerable vertical, lateral and angular adjustments in the plane of the wall and, hence, may be set in a true position irrespective of whether or not the con duit terminal is accurately set in the wall and irrespective of whether or not the terminal flanges 8 are flush with the finished surface'of the plaster or are considerably inward thereof.

It is important to note that the screws 10 engage the intermediate portions of the anchoring bars, so that the latter are capable of oscillatory or angular movements in respect to the marginal edges of the grille. This permits the grille to be set in a true vertical position, even when the conduitterminal is not in true verticalposition.

In actual practice, these anchoring devices adjustable devices between said lugs and register grille for clamping the anchoring bars onto said flanges and the register grille against the wall, said djustable devices permillin longitudinal angular and pivotal. movements of the anchoring bars in respect to the register grille, v

2. The combination with an air conduit terminal applicable to a wall and havin flanges adjacent to one of the faces of the wall, of a register grille outward of said flanges, anchoring bars having reduced edges engaging the inner faces of said flanges, each of said bars having at its inter mediate portion an offset lug spaced apart from said flanges, and adjustable devices between said lugs and the register grille for the Wall.

clamping theanchoring bans Onto the filll'lgs and the register grille against said face of b Jng substantially terminal.- applicable to a Wall and; having flanges in rectangular arrangement adjaof the faces of the wall, of a g! imam-d:01%1 id flanges, a pair a engagii'lg the inner faces 1b of anchoring h v ofopposi'te flia'a S on said tern'nnal, extendi. 9;: I and overlapplng the other oft sald flanges,

each of said bars having at its intermediate p ortion an offset Iiig spaced apart" from said flanges, and aclJustable devices between sald lugs and lle for elalnjj l'ngthe anchoring the full length thereof bar s 011mm Han -egimam 1 'egj1stei" gene 30 the'wau. I

In testilnonywhereof I sighatfir';

ETER oHRiSTENsEN. 

